Nutrition and infection field study in Guatemalan villages, 1959-1964. 8. An epidemiological appraisal of its wisdom and errors.
D002675:Child, Preschool; D003677:Deficiency Diseases; D004812:Epidemiologic Methods; D006166:Guatemala; D006306:Health Surveys; D006801:Humans; D007199:Indians, South American; D007223:Infant; D007231:Infant, Newborn; D007239:Infections; D009748:Nutrition Disorders; D009749:Nutrition Surveys; D011446:Prospective Studies; D012189:Retrospective Studies